libgo/mksysinfo.sh

   1 #!/bin/sh
   2
   3 # Copyright 2009 The Go Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style
   5 # license that can be found in the LICENSE file.
   6
   7 # Create sysinfo.go.
   8
   9 # This shell script creates the sysinfo.go file which holds types and
  10 # constants extracted from the system header files.  This relies on a
  11 # hook in gcc: the -fdump-go-spec option will generate debugging
  12 # information in Go syntax.
  13
  14 # We currently #include all the files at once, which works, but leads
  15 # to exposing some names which ideally should not be exposed, as they
  16 # match grep patterns.  E.g., WCHAR_MIN gets exposed because it starts
  17 # with W, like the wait flags.
  18
  19 CC=${CC:-gcc}
  20 OUT=tmp-sysinfo.go
  21
  22 set -e
  23
  24 rm -f sysinfo.c
  25 cat > sysinfo.c <<EOF
  26 #include "config.h"
  27
  28 #include <sys/types.h>
  29 #include <dirent.h>
  30 #include <errno.h>
  31 #include <fcntl.h>
  32 #include <netinet/in.h>
  33 /* <netinet/tcp.h> needs u_char/u_short, but <sys/bsd_types> is only
  34    included by <netinet/in.h> if _SGIAPI (i.e. _SGI_SOURCE
  35    && !_XOPEN_SOURCE.
  36    <sys/termios.h> only defines TIOCNOTTY if !_XOPEN_SOURCE, while
  37    <sys/ttold.h> does so unconditionally.  */
  38 #ifdef __sgi__
  39 #include <sys/bsd_types.h>
  40 #include <sys/ttold.h>
  41 #endif
  42 #include <netinet/tcp.h>
  43 #include <signal.h>
  44 #include <sys/ioctl.h>
  45 #include <termios.h>
  46 #if defined(HAVE_SYSCALL_H)
  47 #include <syscall.h>
  48 #endif
  49 #if defined(HAVE_SYS_SYSCALL_H)
  50 #include <sys/syscall.h>
  51 #endif
  52 #if defined(HAVE_SYS_EPOLL_H)
  53 #include <sys/epoll.h>
  54 #endif
  55 #if defined(HAVE_SYS_MMAN_H)
  56 #include <sys/mman.h>
  57 #endif
  58 #if defined(HAVE_SYS_PRCTL_H)
  59 #include <sys/prctl.h>
  60 #endif
  61 #if defined(HAVE_SYS_PTRACE_H)
  62 #include <sys/ptrace.h>
  63 #endif
  64 #include <sys/resource.h>
  65 #include <sys/uio.h>
  66 #include <sys/socket.h>
  67 #include <sys/stat.h>
  68 #include <sys/time.h>
  69 #include <sys/times.h>
  70 #include <sys/wait.h>
  71 #include <sys/un.h>
  72 #if defined(HAVE_SYS_USER_H)
  73 #include <sys/user.h>
  74 #endif
  75 #if defined(HAVE_SYS_UTSNAME_H)
  76 #include <sys/utsname.h>
  77 #endif
  78 #if defined(HAVE_SYS_SELECT_H)
  79 #include <sys/select.h>
  80 #endif
  81 #include <time.h>
  82 #include <unistd.h>
  83 #include <netdb.h>
  84 #include <pwd.h>
  85 #if defined(HAVE_LINUX_FILTER_H)
  86 #include <linux/filter.h>
  87 #endif
  88 #if defined(HAVE_LINUX_NETLINK_H)
  89 #include <linux/netlink.h>
  90 #endif
  91 #if defined(HAVE_LINUX_RTNETLINK_H)
  92 #include <linux/rtnetlink.h>
  93 #endif
  94 #if defined(HAVE_NET_IF_H)
  95 #include <net/if.h>
  96 #endif
  97 #if defined(HAVE_SYS_MOUNT_H)
  98 #include <sys/mount.h>
  99 #endif
 100 #if defined(HAVE_SYS_VFS_H)
 101 #include <sys/vfs.h>
 102 #endif
 103 #if defined(HAVE_STATFS_H)
 104 #include <sys/statfs.h>
 105 #endif
 106 #if defined(HAVE_SYS_TIMEX_H)
 107 #include <sys/timex.h>
 108 #endif
 109 #if defined(HAVE_SYS_SYSINFO_H)
 110 #include <sys/sysinfo.h>
 111 #endif
 112 #if defined(HAVE_USTAT_H)
 113 #include <ustat.h>
 114 #endif
 115 #if defined(HAVE_UTIME_H)
 116 #include <utime.h>
 117 #endif
 118 #if defined(HAVE_LINUX_REBOOT_H)
 119 #include <linux/reboot.h>
 120 #endif
 121
 122 /* Constants that may only be defined as expressions on some systems,
 123    expressions too complex for -fdump-go-spec to handle.  These are
 124    handled specially below.  */
 125 enum {
 126 #ifdef TIOCGWINSZ
 127   TIOCGWINSZ_val = TIOCGWINSZ,
 128 #endif
 129 };
 130 EOF
 131
 132 ${CC} -fdump-go-spec=gen-sysinfo.go -std=gnu99 -S -o sysinfo.s sysinfo.c
 133
 134 echo 'package syscall' > ${OUT}
 135 echo 'import "unsafe"' >> ${OUT}
 136 echo 'type _ unsafe.Pointer' >> ${OUT}
 137
 138 # Get all the consts and types, skipping ones which could not be
 139 # represented in Go and ones which we need to rewrite.  We also skip
 140 # function declarations, as we don't need them here.  All the symbols
 141 # will all have a leading underscore.
 142 grep -v '^// ' gen-sysinfo.go | \
 143   grep -v '^func' | \
 144   grep -v '^type _timeval ' | \
 145   grep -v '^type _timespec_t ' | \
 146   grep -v '^type _timespec ' | \
 147   grep -v '^type _timestruc_t ' | \
 148   grep -v '^type _epoll_' | \
 149   grep -v 'in6_addr' | \
 150   grep -v 'sockaddr_in6' | \
 151   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 152       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 153       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 154       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 155     >> ${OUT}
 156
 157 # The errno constants.  These get type Errno.
 158 echo '#include <errno.h>' | ${CC} -x c - -E -dM | \
 159   egrep '#define E[A-Z0-9_]+ ' | \
 160   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
 161
 162 # The O_xxx flags.
 163 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
 164   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 165 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
 166   echo "const O_ASYNC = 0" >> ${OUT}
 167 fi
 168 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 169   echo "const O_CLOEXEC = 0" >> ${OUT}
 170 fi
 171
 172 # The signal numbers.
 173 grep '^const _SIG[^_]' gen-sysinfo.go | \
 174   grep -v '^const _SIGEV_' | \
 175   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
 176
 177 # The syscall numbers.  We force the names to upper case.
 178 grep '^const _SYS_' gen-sysinfo.go | \
 179   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 180   while read sys; do
 181     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 182     echo "const $sup = _$sys" >> ${OUT}
 183   done
 184
 185 # Stat constants.
 186 grep '^const _S_' gen-sysinfo.go | \
 187   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 188
 189 # Mmap constants.
 190 grep '^const _PROT_' gen-sysinfo.go | \
 191   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 192 grep '^const _MAP_' gen-sysinfo.go | \
 193   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 194 grep '^const _MADV_' gen-sysinfo.go | \
 195   sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 196
 197 # Process status constants.
 198 grep '^const _W' gen-sysinfo.go |
 199   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 200 # WSTOPPED was introduced in glibc 2.3.4.
 201 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 202   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 203     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 204   else
 205     echo 'const WSTOPPED = 2' >> ${OUT}
 206   fi
 207 fi
 208 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 209    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 210   echo 'const WALL = ___WALL' >> ${OUT}
 211 fi
 212
 213 # Networking constants.
 214 egrep '^const _(AF|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 215   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 216 grep '^const _SOMAXCONN' gen-sysinfo.go |
 217   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 218     >> ${OUT}
 219 grep '^const _SHUT_' gen-sysinfo.go |
 220   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 221
 222 # The net package requires some const definitions.
 223 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS; do
 224   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 225     echo "const $m = 0" >> ${OUT}
 226   fi
 227 done
 228
 229 # pathconf constants.
 230 grep '^const __PC' gen-sysinfo.go |
 231   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 232
 233 # epoll constants.
 234 grep '^const _EPOLL' gen-sysinfo.go |
 235   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 236 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 237 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 238   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 239 fi
 240 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 241   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 242 fi
 243
 244 # Prctl constants.
 245 grep '^const _PR_' gen-sysinfo.go |
 246   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 247
 248 # Ptrace constants.
 249 grep '^const _PTRACE' gen-sysinfo.go |
 250   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 251 # We need some ptrace options that are not defined in older versions
 252 # of glibc.
 253 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 254   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 255 fi
 256 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 257   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 258 fi
 259 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 260   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 261 fi
 262 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 263   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 264 fi
 265 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 266   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 267 fi
 268 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 269   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 270 fi
 271 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 272   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 273 fi
 274 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 275   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 276 fi
 277 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 278   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 279 fi
 280 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 281   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 282 fi
 283 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 284   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 285 fi
 286 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 287   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 288 fi
 289 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 290   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 291 fi
 292 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 293   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 294 fi
 295 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 296   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 297 fi
 298 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 299   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 300 fi
 301 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 302   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 303 fi
 304
 305 # The registers returned by PTRACE_GETREGS.  This is probably
 306 # GNU/Linux specific; it should do no harm if there is no
 307 # _user_regs_struct.
 308 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 309 if test "$regs" != ""; then
 310   regs=`echo $regs | sed -e 's/type _user_regs_struct struct //' -e 's/[{}]//g'`
 311   regs=`echo $regs | sed -e s'/^ *//'`
 312   nregs=
 313   while test -n "$regs"; do
 314     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 315     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 316     # Capitalize the first character of the field.
 317     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 318     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 319     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 320     field="$f$r"
 321     nregs="$nregs $field;"
 322   done
 323   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 324 fi
 325
 326 # Some basic types.
 327 echo 'type Size_t _size_t' >> ${OUT}
 328 echo "type Ssize_t _ssize_t" >> ${OUT}
 329 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 330   echo "type Offset_t _off64_t" >> ${OUT}
 331 else
 332   echo "type Offset_t _off_t" >> ${OUT}
 333 fi
 334 echo "type Mode_t _mode_t" >> ${OUT}
 335 echo "type Pid_t _pid_t" >> ${OUT}
 336 echo "type Uid_t _uid_t" >> ${OUT}
 337 echo "type Gid_t _gid_t" >> ${OUT}
 338 echo "type Socklen_t _socklen_t" >> ${OUT}
 339
 340 # The long type, needed because that is the type that ptrace returns.
 341 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 342 if test "$sizeof_long" = "4"; then
 343   echo "type _C_long int32" >> ${OUT}
 344 elif test "$sizeof_long" = "8"; then
 345   echo "type _C_long int64" >> ${OUT}
 346 else
 347   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 348   exit 1
 349 fi
 350
 351 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 352 # double is commented by -fdump-go-spec.
 353 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 354   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 355 fi
 356 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 357   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 358 fi
 359
 360 # The time_t type.
 361 if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
 362   echo 'type Time_t _time_t' >> ${OUT}
 363 fi
 364
 365 # The time structures need special handling: we need to name the
 366 # types, so that we can cast integers to the right types when
 367 # assigning to the structures.
 368 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 369 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 370 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 371 echo "type Timeval_sec_t $timeval_sec" >> ${OUT}
 372 echo "type Timeval_usec_t $timeval_usec" >> ${OUT}
 373 echo $timeval | \
 374   sed -e 's/type _timeval /type Timeval /' \
 375       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 376       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 377 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 378 if test "$timespec" = ""; then
 379   # IRIX 6.5 has __timespec instead.
 380   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 381 fi
 382 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 383 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 384 echo "type Timespec_sec_t $timespec_sec" >> ${OUT}
 385 echo "type Timespec_nsec_t $timespec_nsec" >> ${OUT}
 386 echo $timespec | \
 387   sed -e 's/^type ___timespec /type Timespec /' \
 388       -e 's/^type _timespec /type Timespec /' \
 389       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 390       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 391
 392 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 393 if test "$timestruc" != ""; then
 394   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 395   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 396   echo "type Timestruc_sec_t $timestruc_sec" >> ${OUT}
 397   echo "type Timestruc_nsec_t $timestruc_nsec" >> ${OUT}
 398   echo $timestruc | \
 399     sed -e 's/^type _timestruc_t /type Timestruc /' \
 400         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 401         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 402 fi
 403
 404 # The tms struct.
 405 grep '^type _tms ' gen-sysinfo.go | \
 406     sed -e 's/type _tms/type Tms/' \
 407       -e 's/tms_utime/Utime/' \
 408       -e 's/tms_stime/Stime/' \
 409       -e 's/tms_cutime/Cutime/' \
 410       -e 's/tms_cstime/Cstime/' \
 411     >> ${OUT}
 412
 413 # The stat type.
 414 # Prefer largefile variant if available.
 415 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 416 if test "$stat" != ""; then
 417   grep '^type _stat64 ' gen-sysinfo.go
 418 else
 419   grep '^type _stat ' gen-sysinfo.go
 420 fi | sed -e 's/type _stat64/type Stat_t/' \
 421          -e 's/type _stat/type Stat_t/' \
 422          -e 's/st_dev/Dev/' \
 423          -e 's/st_ino/Ino/g' \
 424          -e 's/st_nlink/Nlink/' \
 425          -e 's/st_mode/Mode/' \
 426          -e 's/st_uid/Uid/' \
 427          -e 's/st_gid/Gid/' \
 428          -e 's/st_rdev/Rdev/' \
 429          -e 's/st_size/Size/' \
 430          -e 's/st_blksize/Blksize/' \
 431          -e 's/st_blocks/Blocks/' \
 432          -e 's/st_atim/Atime/' \
 433          -e 's/st_mtim/Mtime/' \
 434          -e 's/st_ctim/Ctime/' \
 435          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 436          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 437          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 438          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 439          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 440        >> ${OUT}
 441
 442 # The directory searching types.
 443 # Prefer largefile variant if available.
 444 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 445 if test "$dirent" != ""; then
 446   grep '^type _dirent64 ' gen-sysinfo.go
 447 else
 448   grep '^type _dirent ' gen-sysinfo.go
 449 fi | sed -e 's/type _dirent64/type Dirent/' \
 450          -e 's/type _dirent/type Dirent/' \
 451          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 452          -e 's/d_name/Name/' \
 453          -e 's/]int8/]byte/' \
 454          -e 's/d_ino/Ino/' \
 455          -e 's/d_off/Off/' \
 456          -e 's/d_reclen/Reclen/' \
 457          -e 's/d_type/Type/' \
 458       >> ${OUT}
 459 echo "type DIR _DIR" >> ${OUT}
 460
 461 # The rusage struct.
 462 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 463 if test "$rusage" != ""; then
 464   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 465   rusage=`echo $rusage | sed -e 's/^ *//'`
 466   nrusage=
 467   while test -n "$rusage"; do
 468     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 469     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 470     # Drop the leading ru_, capitalize the next character.
 471     field=`echo $field | sed -e 's/^ru_//'`
 472     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 473     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 474     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 475     # Fix _timeval _timespec, and _timestruc_t.
 476     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 477     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 478     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 479     field="$f$r"
 480     nrusage="$nrusage $field;"
 481   done
 482   echo "type Rusage struct {$nrusage }" >> ${OUT}
 483 else
 484   echo "type Rusage struct {}" >> ${OUT}
 485 fi
 486
 487 # The RUSAGE constants.
 488 grep '^const _RUSAGE_' gen-sysinfo.go | \
 489   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 490
 491 # The utsname struct.
 492 grep '^type _utsname ' gen-sysinfo.go | \
 493     sed -e 's/_utsname/Utsname/' \
 494       -e 's/sysname/Sysname/' \
 495       -e 's/nodename/Nodename/' \
 496       -e 's/release/Release/' \
 497       -e 's/version/Version/' \
 498       -e 's/machine/Machine/' \
 499       -e 's/domainname/Domainname/' \
 500     >> ${OUT}
 501
 502 # The iovec struct.
 503 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 504 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 505 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 506 echo $iovec | \
 507     sed -e 's/_iovec/Iovec/' \
 508       -e 's/iov_base/Base/' \
 509       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 510     >> ${OUT}
 511
 512 # The msghdr struct.
 513 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 514 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 515 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 516 echo $msghdr | \
 517     sed -e 's/_msghdr/Msghdr/' \
 518       -e 's/msg_name/Name/' \
 519       -e 's/msg_namelen/Namelen/' \
 520       -e 's/msg_iov/Iov/' \
 521       -e 's/msg_iovlen/Iovlen/' \
 522       -e 's/_iovec/Iovec/' \
 523       -e 's/msg_control/Control/' \
 524       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 525       -e 's/msg_flags/Flags/' \
 526     >> ${OUT}
 527
 528 # The MSG_ flags for Msghdr.
 529 grep '^const _MSG_' gen-sysinfo.go | \
 530   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 531
 532 # The cmsghdr struct.
 533 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 534 if test -n "$cmsghdr"; then
 535   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 536   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 537   echo "$cmsghdr" | \
 538       sed -e 's/_cmsghdr/Cmsghdr/' \
 539         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 540         -e 's/cmsg_level/Level/' \
 541         -e 's/cmsg_type/Type/' \
 542         -e 's/\[\]/[0]/' \
 543       >> ${OUT}
 544
 545   # The size of the cmsghdr struct.
 546   echo 'var SizeofCmsghdr = int(unsafe.Sizeof(Cmsghdr{}))' >> ${OUT}
 547 fi
 548
 549 # The SCM_ flags for Cmsghdr.
 550 grep '^const _SCM_' gen-sysinfo.go | \
 551   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 552
 553 # The ucred struct.
 554 grep '^type _ucred ' gen-sysinfo.go | \
 555     sed -e 's/_ucred/Ucred/' \
 556       -e 's/pid/Pid/' \
 557       -e 's/uid/Uid/' \
 558       -e 's/gid/Gid/' \
 559     >> ${OUT}
 560
 561 # The size of the ucred struct.
 562 if grep 'type Ucred ' ${OUT} >/dev/null 2>&1; then
 563   echo 'var SizeofUcred = int(unsafe.Sizeof(Ucred{}))' >> ${OUT}
 564 fi
 565
 566 # The ip_mreq struct.
 567 grep '^type _ip_mreq ' gen-sysinfo.go | \
 568     sed -e 's/_ip_mreq/IPMreq/' \
 569       -e 's/imr_multiaddr/Multiaddr/' \
 570       -e 's/imr_interface/Interface/' \
 571       -e 's/_in_addr/[4]byte/g' \
 572     >> ${OUT}
 573
 574 # We need IPMreq to compile the net package.
 575 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 576   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 577 fi
 578
 579 # The size of the ip_mreq struct.
 580 echo 'var SizeofIPMreq = int(unsafe.Sizeof(IPMreq{}))' >> ${OUT}
 581
 582 # The ipv6_mreq struct.
 583 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 584     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 585       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 586       -e 's/ipv6mr_interface/Interface/' \
 587       -e 's/_in6_addr/[16]byte/' \
 588     >> ${OUT}
 589
 590 # We need IPv6Mreq to compile the net package.
 591 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 592   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 593 fi
 594
 595 # The size of the ipv6_mreq struct.
 596 echo 'var SizeofIPv6Mreq = int(unsafe.Sizeof(IPv6Mreq{}))' >> ${OUT}
 597
 598 # The ip_mreqn struct.
 599 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 600     sed -e 's/_ip_mreqn/IPMreqn/' \
 601       -e 's/imr_multiaddr/Multiaddr/' \
 602       -e 's/imr_address/Address/' \
 603       -e 's/imr_ifindex/Ifindex/' \
 604       -e 's/_in_addr/[4]byte/g' \
 605     >> ${OUT}
 606
 607 # We need IPMreq to compile the net package.
 608 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 609   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 610 fi
 611
 612 # The size of the ip_mreqn struct.
 613 echo 'var SizeofIPMreqn = int(unsafe.Sizeof(IPMreqn{}))' >> ${OUT}
 614
 615 # Try to guess the type to use for fd_set.
 616 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 617 fds_bits_type="_C_long"
 618 if test "$fd_set" != ""; then
 619     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 620 fi
 621 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 622
 623 # The addrinfo struct.
 624 grep '^type _addrinfo ' gen-sysinfo.go | \
 625     sed -e 's/_addrinfo/Addrinfo/g' \
 626       -e 's/ ai_/ Ai_/g' \
 627     >> ${OUT}
 628
 629 # The addrinfo flags and errors.
 630 grep '^const _AI_' gen-sysinfo.go | \
 631   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 632 grep '^const _EAI_' gen-sysinfo.go | \
 633   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 634
 635 # The passwd struct.
 636 grep '^type _passwd ' gen-sysinfo.go | \
 637     sed -e 's/_passwd/Passwd/' \
 638       -e 's/ pw_/ Pw_/g' \
 639     >> ${OUT}
 640
 641 # The ioctl flags for the controlling TTY.
 642 grep '^const _TIOC' gen-sysinfo.go | \
 643     grep -v '_val =' | \
 644     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 645 # We need TIOCGWINSZ.
 646 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 647   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 648     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 649   fi
 650 fi
 651
 652 # The ioctl flags for terminal control
 653 grep '^const _TC[GS]ET' gen-sysinfo.go | \
 654     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 655
 656 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
 657 # needs handling in syscalls.exec.go.
 658 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
 659   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
 660     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
 661   fi
 662 fi
 663
 664 # The nlmsghdr struct.
 665 grep '^type _nlmsghdr ' gen-sysinfo.go | \
 666     sed -e 's/_nlmsghdr/NlMsghdr/' \
 667       -e 's/nlmsg_len/Len/' \
 668       -e 's/nlmsg_type/Type/' \
 669       -e 's/nlmsg_flags/Flags/' \
 670       -e 's/nlmsg_seq/Seq/' \
 671       -e 's/nlmsg_pid/Pid/' \
 672     >> ${OUT}
 673
 674 # The nlmsg flags and operators.
 675 grep '^const _NLM' gen-sysinfo.go | \
 676     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 677
 678 # NLMSG_HDRLEN is defined as an expression using sizeof.
 679 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
 680   if grep '^type NlMsghdr ' ${OUT} > /dev/null 2>&1; then
 681     echo 'var NLMSG_HDRLEN = int((unsafe.Sizeof(NlMsghdr{}) + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1))' >> ${OUT}
 682   fi
 683 fi
 684
 685 # The rtmsg struct.
 686 grep '^type _rtmsg ' gen-sysinfo.go | \
 687     sed -e 's/_rtmsg/RtMsg/' \
 688       -e 's/rtm_family/Family/' \
 689       -e 's/rtm_dst_len/Dst_len/' \
 690       -e 's/rtm_src_len/Src_len/' \
 691       -e 's/rtm_tos/Tos/' \
 692       -e 's/rtm_table/Table/' \
 693       -e 's/rtm_protocol/Procotol/' \
 694       -e 's/rtm_scope/Scope/' \
 695       -e 's/rtm_type/Type/' \
 696       -e 's/rtm_flags/Flags/' \
 697     >> ${OUT}
 698
 699 # The size of the rtmsg struct.
 700 if grep 'type RtMsg ' ${OUT} > /dev/null 2>&1; then
 701   echo 'var SizeofRtMsg = int(unsafe.Sizeof(RtMsg{}))' >> ${OUT}
 702 fi
 703
 704 # The rtgenmsg struct.
 705 grep '^type _rtgenmsg ' gen-sysinfo.go | \
 706     sed -e 's/_rtgenmsg/RtGenmsg/' \
 707       -e 's/rtgen_family/Family/' \
 708     >> ${OUT}
 709
 710 # The routing message flags.
 711 grep '^const _RTA' gen-sysinfo.go | \
 712     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 713 grep '^const _RTM' gen-sysinfo.go | \
 714     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 715
 716 # The size of the rtgenmsg struct.
 717 if grep 'type RtGenmsg ' ${OUT} > /dev/null 2>&1; then
 718   echo 'var SizeofRtGenmsg = int(unsafe.Sizeof(RtGenmsg{}))' >> ${OUT}
 719 fi
 720
 721 # The ifinfomsg struct.
 722 grep '^type _ifinfomsg ' gen-sysinfo.go | \
 723     sed -e 's/_ifinfomsg/IfInfomsg/' \
 724       -e 's/ifi_family/Family/' \
 725       -e 's/ifi_type/Type/' \
 726       -e 's/ifi_index/Index/' \
 727       -e 's/ifi_flags/Flags/' \
 728       -e 's/ifi_change/Change/' \
 729     >> ${OUT}
 730
 731 # The interface information types and flags.
 732 grep '^const _IFA' gen-sysinfo.go | \
 733     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 734 grep '^const _IFLA' gen-sysinfo.go | \
 735     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 736 grep '^const _IFF' gen-sysinfo.go | \
 737     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 738 grep '^const _IFNAMSIZ' gen-sysinfo.go | \
 739     sed -e 's/^\(const \)_\(IFNAMSIZ[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 740 grep '^const _SIOC' gen-sysinfo.go |
 741     sed -e 's/^\(const \)_\(SIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 742
 743 # The size of the ifinfomsg struct.
 744 if grep 'type IfInfomsg ' ${OUT} > /dev/null 2>&1; then
 745   echo 'var SizeofIfInfomsg = int(unsafe.Sizeof(IfInfomsg{}))' >> ${OUT}
 746 fi
 747
 748 # The ifaddrmsg struct.
 749 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
 750     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
 751       -e 's/ifa_family/Family/' \
 752       -e 's/ifa_prefixlen/Prefixlen/' \
 753       -e 's/ifa_flags/Flags/' \
 754       -e 's/ifa_scope/Scope/' \
 755       -e 's/ifa_index/Index/' \
 756     >> ${OUT}
 757
 758 # The size of the ifaddrmsg struct.
 759 if grep 'type IfAddrmsg ' ${OUT} > /dev/null 2>&1; then
 760   echo 'var SizeofIfAddrmsg = int(unsafe.Sizeof(IfAddrmsg{}))' >> ${OUT}
 761 fi
 762
 763 # The rtattr struct.
 764 grep '^type _rtattr ' gen-sysinfo.go | \
 765     sed -e 's/_rtattr/RtAttr/' \
 766       -e 's/rta_len/Len/' \
 767       -e 's/rta_type/Type/' \
 768     >> ${OUT}
 769
 770 # The size of the rtattr struct.
 771 if grep 'type RtAttr ' ${OUT} > /dev/null 2>&1; then
 772   echo 'var SizeofRtAttr = int(unsafe.Sizeof(RtAttr{}))' >> ${OUT}
 773 fi
 774
 775 # The termios struct.
 776 grep '^type _termios ' gen-sysinfo.go | \
 777     sed -e 's/_termios/Termios/' \
 778       -e 's/c_iflag/Iflag/' \
 779       -e 's/c_oflag/Oflag/' \
 780       -e 's/c_cflag/Cflag/' \
 781       -e 's/c_lflag/Lflag/' \
 782       -e 's/c_line/Line/' \
 783       -e 's/c_cc/Cc/' \
 784       -e 's/c_ispeed/Ispeed/' \
 785       -e 's/c_ospeed/Ospeed/' \
 786     >> ${OUT}
 787
 788 # The termios constants.
 789 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
 790     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
 791     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 TABDLY BSDLY VTDLY \
 792     FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL CLOCAL \
 793     LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK ECHONL \
 794     ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN VINTR \
 795     VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP VSUSP \
 796     VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
 797     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
 798     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
 799     B38400 B57600 B115200 B230400; do
 800
 801     grep "^const _$n " gen-sysinfo.go | \
 802         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 803 done
 804
 805 # The mount flags
 806 grep '^const _MS_' gen-sysinfo.go |
 807     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 808
 809 # The fallocate flags.
 810 grep '^const _FALLOC_' gen-sysinfo.go |
 811     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 812
 813 # The statfs struct.
 814 # Prefer largefile variant if available.
 815 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
 816 if test "$statfs" != ""; then
 817   grep '^type _statfs64 ' gen-sysinfo.go
 818 else
 819   grep '^type _statfs ' gen-sysinfo.go
 820 fi | sed -e 's/type _statfs64/type Statfs_t/' \
 821          -e 's/type _statfs/type Statfs_t/' \
 822          -e 's/f_type/Type/' \
 823          -e 's/f_bsize/Bsize/' \
 824          -e 's/f_blocks/Blocks/' \
 825          -e 's/f_bfree/Bfree/' \
 826          -e 's/f_bavail/Bavail/' \
 827          -e 's/f_files/Files/' \
 828          -e 's/f_ffree/Ffree/' \
 829          -e 's/f_fsid/Fsid/' \
 830          -e 's/f_namelen/Namelen/' \
 831          -e 's/f_frsize/Frsize/' \
 832          -e 's/f_flags/Flags/' \
 833          -e 's/f_spare/Spare/' \
 834     >> ${OUT}
 835
 836 # The timex struct.
 837 timex=`grep '^type _timex ' gen-sysinfo.go || true`
 838 if test "$timex" = ""; then
 839   timex=`grep '^// type _timex ' gen-sysinfo.go || true`
 840   if test "$timex" != ""; then
 841     timex=`echo $timex | sed -e 's|// ||' -e 's/INVALID-bit-field/int32/g'`
 842   fi
 843 fi
 844 if test "$timex" != ""; then
 845   echo "$timex" | \
 846     sed -e 's/_timex/Timex/' \
 847       -e 's/modes/Modes/' \
 848       -e 's/offset/Offset/' \
 849       -e 's/freq/Freq/' \
 850       -e 's/maxerror/Maxerror/' \
 851       -e 's/esterror/Esterror/' \
 852       -e 's/status/Status/' \
 853       -e 's/constant/Constant/' \
 854       -e 's/precision/Precision/' \
 855       -e 's/tolerance/Tolerance/' \
 856       -e 's/ time / Time /' \
 857       -e 's/tick/Tick/' \
 858       -e 's/ppsfreq/Ppsfreq/' \
 859       -e 's/jitter/Jitter/' \
 860       -e 's/shift/Shift/' \
 861       -e 's/stabil/Stabil/' \
 862       -e 's/jitcnt/Jitcnt/' \
 863       -e 's/calcnt/Calcnt/' \
 864       -e 's/errcnt/Errcnt/' \
 865       -e 's/stbcnt/Stbcnt/' \
 866       -e 's/tai/Tai/' \
 867       -e 's/_timeval/Timeval/' \
 868     >> ${OUT}
 869 fi
 870
 871 # The rlimit struct.
 872 grep '^type _rlimit ' gen-sysinfo.go | \
 873     sed -e 's/_rlimit/Rlimit/' \
 874       -e 's/rlim_cur/Cur/' \
 875       -e 's/rlim_max/Max/' \
 876     >> ${OUT}
 877
 878 # The RLIMIT constants.
 879 grep '^const _RLIMIT_' gen-sysinfo.go |
 880     sed -e 's/^\(const \)_\(RLIMIT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 881
 882 # The sysinfo struct.
 883 grep '^type _sysinfo ' gen-sysinfo.go | \
 884     sed -e 's/_sysinfo/Sysinfo_t/' \
 885       -e 's/uptime/Uptime/' \
 886       -e 's/loads/Loads/' \
 887       -e 's/totalram/Totalram/' \
 888       -e 's/freeram/Freeram/' \
 889       -e 's/sharedram/Sharedram/' \
 890       -e 's/bufferram/Bufferram/' \
 891       -e 's/totalswap/Totalswap/' \
 892       -e 's/freeswap/Freeswap/' \
 893       -e 's/procs/Procs/' \
 894       -e 's/totalhigh/Totalhigh/' \
 895       -e 's/freehigh/Freehigh/' \
 896       -e 's/mem_unit/Unit/' \
 897     >> ${OUT}
 898
 899 # The ustat struct.
 900 grep '^type _ustat ' gen-sysinfo.go | \
 901     sed -e 's/_ustat/Ustat_t/' \
 902       -e 's/f_tfree/Tfree/' \
 903       -e 's/f_tinode/Tinoe/' \
 904       -e 's/f_fname/Fname/' \
 905       -e 's/f_fpack/Fpack/' \
 906     >> ${OUT}
 907 # Force it to be defined, as on some older GNU/Linux systems the
 908 # header file fails when using with <linux/filter.h>.
 909 if ! grep 'type _ustat ' gen-sysinfo.go >/dev/null 2>&1; then
 910   echo 'type Ustat_t struct { Tfree int32; Tinoe uint64; Fname [5+1]int8; Fpack [5+1]int8; }' >> ${OUT}
 911 fi
 912
 913 # The utimbuf struct.
 914 grep '^type _utimbuf ' gen-sysinfo.go | \
 915     sed -e 's/_utimbuf/Utimbuf/' \
 916       -e 's/actime/Actime/' \
 917       -e 's/modtime/Modtime/' \
 918     >> ${OUT}
 919
 920 # The GNU/Linux LINUX_REBOOT flags.
 921 grep '^const _LINUX_REBOOT_' gen-sysinfo.go |
 922     sed -e 's/^\(const \)_\(LINUX_REBOOT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 923
 924 # The GNU/Linux sock_filter struct.
 925 grep '^type _sock_filter ' gen-sysinfo.go | \
 926     sed -e 's/_sock_filter/SockFilter/' \
 927       -e 's/code/Code/' \
 928       -e 's/jt/Jt/' \
 929       -e 's/jf/Jf/' \
 930       -e 's/k /K /' \
 931     >> ${OUT}
 932
 933 # The GNU/Linux sock_fprog struct.
 934 grep '^type _sock_fprog ' gen-sysinfo.go | \
 935     sed -e 's/_sock_fprog/SockFprog/' \
 936       -e 's/len/Len/' \
 937       -e 's/filter/Filter/' \
 938       -e 's/_sock_filter/SockFilter/' \
 939     >> ${OUT}
 940
 941 exit $?